Re: [PATCH 2/2] arm64: dts: qcom: sm8750: Add BWMONs

[Stephan Gerhold]

On Mon, Jan 13, 2025 at 01:08:18PM -0800, Melody Olvera wrote:
> From: Shivnandan Kumar <quic_kshivnan@xxxxxxxxxxx>
> 
> Add the CPU BWMONs for SM8750 SoCs.
> 
> Signed-off-by: Shivnandan Kumar <quic_kshivnan@xxxxxxxxxxx>
> Signed-off-by: Melody Olvera <quic_molvera@xxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sm8750.dtsi | 74 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 74 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> index 3bbd7d18598ee0a3a0d5130c03a3166e1fc14d82..09fe3149da1926b74a98280fe209ae7f423db864 100644
> --- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
> @@ -2802,6 +2802,80 @@ rpmhpd_opp_super_turbo_no_cpr: opp-480 {
>  			};
>  		};
>  
> +		/* cluster0 */
> +		pmu@240b3400 {
> +			compatible = "qcom,sm8750-cpu-bwmon", "qcom,sdm845-bwmon";
> +			reg = <0x0 0x240b3400 0x0 0x600>;
> +
> +			interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
> +
> +			interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;

The start of the interconnect path is QCOM_ICC_TAG_ACTIVE_ONLY, but the
destination is QCOM_ICC_TAG_ALWAYS? This is strange. Interconnect used
by the CPU should be QCOM_ICC_TAG_ACTIVE_ONLY.

Stephan